I am a Year 8 student at Pt England School in Auckland, NZ. I am in Class 3 and my teacher is Mrs Tele'a.
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Tuesday, March 13, 2012
Archimedes
This Archimedes Marble Roller-coaster was built in 1990. Its a ball rolling on coaster. It is made out of balsa wood with exception. It uses gravity to propel the ride.
Hey Jojo!
ReplyDeleteWhat a cool roller-coaster you have presented on your blog. I wonder how long it took to make that piece of at work.
Keep up the good work.